<?php
/**
 * crcl/base
 *
 * Copyright 2013 CRCL - André Sabosch - info@crcl.de
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace crcl\base\persistance;

interface IItem
{
  public static function create(\crcl\base\structure\IItem &$oItem);
}

abstract class Item extends \crcl\base\instance\Multiton implements IItem
{
  const TYPE_MYSQL = 'mysql';

  public static function create(\crcl\base\structure\IItem &$oItem)
  {
    $sDsn = $oItem->getDsn();
    $oInstance = self::getInstance($sDsn);
    $oInstance->setItem($oItem);
    if (!$oItem->hasField('id'))
    {
      $oField = \crcl\base\structure\Field::getInstanceFromConfig(self::$aFieldId);
      $oItem->setField('id', $oField);
    }

    return $oInstance;
  }

  /** PROTECTED ***********************************************************************************/

  protected static $sFactoryDirectory = 'item';
  protected static $aFactoryAllowedTypes = array(self::TYPE_MYSQL);

  /** PRIVATE *************************************************************************************/

  private static $aFieldId = array('type' => 'integer', 'default' => \NULL);
}